Kepler-37d
Astronomical discovery
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Kepler-37d is an exoplanet discovered by the Kepler space telescope in February 2013. It is located 209 light years away, in the constellation Lyra. With an orbital period of 39.8 days, it is the largest of the three known planets orbiting its... Wikipedia
Discovered: 2013
Mean radius: 2.030+0.030; −0.039 R🜨
Discovery site: Kepler space telescope
Orbits: Kepler-37
Orbital period: 40 days
Mass: 5.4±1.4 M🜨 or <2.0 M🜨
Temperature: 499±7 K (226 °C; 439 °F, equilibrium)